dan_bo
How much does it cost to Oldham?
get some sodium chlorate weedkiller, sugar.....actually, don't.
Calling all scientists.
- Thread starter andyfromotley
- Start date
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Apparatus
1 beaker
1sheet of paper
water
Method
Fill beaker with water, then place sheet of paper on top of the beaker. Place hand on paper to hold in place, lift the glass with other hand and turn the glass upside down. Now remove the hand that is holding he sheet of paper in place.
Results
have a go and see, don't use a pint glass, waterproof paper works best but I've just tried it with a wine glass and some writing paper.
1 beaker
1sheet of paper
water
Method
Fill beaker with water, then place sheet of paper on top of the beaker. Place hand on paper to hold in place, lift the glass with other hand and turn the glass upside down. Now remove the hand that is holding he sheet of paper in place.
Results
have a go and see, don't use a pint glass, waterproof paper works best but I've just tried it with a wine glass and some writing paper.
Chris Sirrus
New Member
Chromatography that's called.
XmisterIS
Purveyor of fine nonsense
dan_bo said:
Lol! Doesn't work any more, combustion retardant is added to modern fertiliser.
If you have technic lego you could make a 5-speed differential gearbox. (seriously, it's not that hard!).
Or:
You could make a string telephone (two yoghurt pots and a long bit of string).
You could play around with a gyroscope.
You could make your own gyroscope out of an old bicycle wheel, with something for the spindle and a bit of string to spin it up - you'll need two wooden blocks to hold the spindle while you spin it up.
You could make a paper helicopter and watch it spin over a candle flame.
You could make a simple circuit comprising a 12v battery, a car interior light bulb, some electrical flex and a home-made switch. If you're feeling really enthusiastic, you could make a Wheatstone bridge and show how it can act to balance the potential across two current devices (light bulbs) in the same circuit.
If your local chemist sells silver nitrate, you could make a pinhole camera with an empty biscuit tin and some fine-grained paper.
OP
OP
andyfromotley
New Member
- Location
- Otley, west yorks
dan_bo said:
I have ordered a load off the internet. Thought buying in bulk made sense. Oh hang on i think theyre delivering it now, in a big van, fed ex? no. UPS? No.
P....o...l.....i.....c.......e????
Sh1t.
Piemaster
Guru
- Location
- UK City of Culture
My favourite chemistry experiment:
required - 2 medium eggs
110g / 4oz self-raising flour
½ teaspoon baking powder
110g / 4oz butter (soft)
110g / 4oz sugar
mix together into a solution. Heat is required for the chemical reaction so put somewhere warm, say the oven for 30mins at 170 C for 1/2 hour, and watch the reaction take place.
Don't forget to safely dispose of the result when it has cooled.
required - 2 medium eggs
110g / 4oz self-raising flour
½ teaspoon baking powder
110g / 4oz butter (soft)
110g / 4oz sugar
mix together into a solution. Heat is required for the chemical reaction so put somewhere warm, say the oven for 30mins at 170 C for 1/2 hour, and watch the reaction take place.
Don't forget to safely dispose of the result when it has cooled.
CopperBrompton
Bicycle: a means of transport between cake-stops
- Location
- London
What Piemaster describes is a great experiment, but health & safety regulations require that the resulting materials be disposed of in a Secure Recycling Centre. Fortunately, I operate one of those, so just drop the materials over to me and I'll take care of it. Free of charge, since you're a fellow forum member.
Amanda P
Legendary Member
- Location
- York. Well, York-ish...
No biology?
Buy some cut flowers. Stand them in water containing some ink of a colour that contrasts with the flowers. How long will it take for the ink to appear in the petals? Why do we stand flowers in water? What happens if you take them out of the water? Why does that happen?
Get a bird feeder and hang it outside your window. What birds can you see? What foods do they prefer to eat? Why do they seem keener to eat at some times of day than others? Find out whether they are residents or migrants. If they're migrants, where do they migrate to or from? How did they find out where they migrate to or from?
Buy some "trip trap" mouse traps and set them in your garden (follow the instructions they come with). Check them morning and evening. When you've caught something, tip it out into a big transparent plastic bag and take a look (be careful, lots of small mammals bite, hard). Isn't he cute? Is he a he, or a she? How can we tell?
Buy a microscope. You can get quite nice ones that plug into a computer, or the hand-held kind where a slide is held on with a ring magnet. Have a look at pond water, blood, skin, hairs...
Look a tree stump or a cut log. Why are there rings in it? How did they get there? How old was the tree? Why are some rings thicker than others?
Are there worms in your garden? Or compost heap? Make a solution of mustard and water a small patch. Now how many worms do you think there are? Why did they suddenly appear? What eats worms? What do worms eat?
Minibeasts. You won't have to look far to find an earwig, or woodlice, or a beetle or two. What do they eat? What eats them? Have a good look at them with a magnifying glass.
Grow something. A broad bean is good. If you just put it in a plastic cup on a bit of damp cotton wool, you can see the roots and shoots growing. Have a look and measure it every day. How fast does it grow? Does it grow better if you keep it in the dark? Does it grow faster at night or during the day (beans do grow quite quick)?
Go out on a clear night with some binoculars and do some astronomy. Look at the moon. Check out Mars and Venus. Can you name some of the constellations? If you live somewhere really dark, you'll be able to see the Milky Way. What is it? (If you live in a city, save this one for when you're on holiday somewhere where it does get really dark. You can see the moon and the brighter stars pretty much anywhere though).
What direction is a really bright star in? Find out with a compass. Is it still in the same place an hour or so later? And another hour? Why has it moved?
What about the sun? Does that move?
Make a crude sundial with a stick stuck in the ground. Put another stick or a chalk mark or whatever where the shadow falls. Has the shadow moved an hour later? Mark it now. And again, and again. Could we tell the time with the sundial? Will it work again tomorrow (if it's sunny)?
You can have endless fun with a torch battery, a bulb and some bits of wire.
Buy some cut flowers. Stand them in water containing some ink of a colour that contrasts with the flowers. How long will it take for the ink to appear in the petals? Why do we stand flowers in water? What happens if you take them out of the water? Why does that happen?
Get a bird feeder and hang it outside your window. What birds can you see? What foods do they prefer to eat? Why do they seem keener to eat at some times of day than others? Find out whether they are residents or migrants. If they're migrants, where do they migrate to or from? How did they find out where they migrate to or from?
Buy some "trip trap" mouse traps and set them in your garden (follow the instructions they come with). Check them morning and evening. When you've caught something, tip it out into a big transparent plastic bag and take a look (be careful, lots of small mammals bite, hard). Isn't he cute? Is he a he, or a she? How can we tell?
Buy a microscope. You can get quite nice ones that plug into a computer, or the hand-held kind where a slide is held on with a ring magnet. Have a look at pond water, blood, skin, hairs...
Look a tree stump or a cut log. Why are there rings in it? How did they get there? How old was the tree? Why are some rings thicker than others?
Are there worms in your garden? Or compost heap? Make a solution of mustard and water a small patch. Now how many worms do you think there are? Why did they suddenly appear? What eats worms? What do worms eat?
Minibeasts. You won't have to look far to find an earwig, or woodlice, or a beetle or two. What do they eat? What eats them? Have a good look at them with a magnifying glass.
Grow something. A broad bean is good. If you just put it in a plastic cup on a bit of damp cotton wool, you can see the roots and shoots growing. Have a look and measure it every day. How fast does it grow? Does it grow better if you keep it in the dark? Does it grow faster at night or during the day (beans do grow quite quick)?
Go out on a clear night with some binoculars and do some astronomy. Look at the moon. Check out Mars and Venus. Can you name some of the constellations? If you live somewhere really dark, you'll be able to see the Milky Way. What is it? (If you live in a city, save this one for when you're on holiday somewhere where it does get really dark. You can see the moon and the brighter stars pretty much anywhere though).
What direction is a really bright star in? Find out with a compass. Is it still in the same place an hour or so later? And another hour? Why has it moved?
What about the sun? Does that move?
Make a crude sundial with a stick stuck in the ground. Put another stick or a chalk mark or whatever where the shadow falls. Has the shadow moved an hour later? Mark it now. And again, and again. Could we tell the time with the sundial? Will it work again tomorrow (if it's sunny)?
You can have endless fun with a torch battery, a bulb and some bits of wire.
jpembroke
New Member
- Location
- Cheltenham
Get some flour, butter, eggs, sugar
Make a cake
Eat it
Brilliant!
Make a cake
Eat it
Brilliant!
Fab Foodie
hanging-on in quiet desperation ...
- Location
- Kirton, Devon.
Eat McDonalds supersized meals for a whole month, morning noon and night and see if it affects your health...
Sysagent
"The Most Annoying Man In The World."
- Location
- Great Harwood, Lancashire
Buy a microscope!
Hours and hours of interest for me in my younger days, that was when my parents had taken the chemistry set off me because I had set fire to the bedroom curtains with my bunsen burner...
Hours and hours of interest for me in my younger days, that was when my parents had taken the chemistry set off me because I had set fire to the bedroom curtains with my bunsen burner...
